The original melody is likely a variant of a medieval Gregorian chant ... At the mention of ringing bells in the lyrics, the Choir, Orchestra, and Gabriel Trumpet Ensemble are joined by the ...

Today, Gregorian chant is more or less 1300 years old ... The greatest thus far is the mass Gaude Mater for two soloists, mixed choir, small organ, large organ and symphony orchestra, the premiere of ...

and by visiting choirs when the Abbey Choir is in recess. The music sung ranges from Gregorian chant dating from the first millennium to contemporary music and encompasses the remarkable richness and ...